From: Henry Chen <henryc.chen@mediatek.com>
To: Rob Herring <robh+dt@kernel.org>
Cc: Viresh Kumar <vireshk@kernel.org>,
Stephen Boyd <sboyd@kernel.org>,
Matthias Brugger <matthias.bgg@gmail.com>,
Ulf Hansson <ulf.hansson@linaro.org>,
Mark Rutland <mark.rutland@arm.com>,
Fan Chen <fan.chen@mediatek.com>,
Weiyi Lu <weiyi.lu@mediatek.com>,
James Liao <jamesjj.liao@mediatek.com>,
Kees Cook <keescook@chromium.org>,
"open list:THERMAL" <linux-pm@vger.kernel.org>,
<devicetree@vger.kernel.org>,
"moderated list:ARM/FREESCALE IMX / MXC ARM ARCHITECTURE"
<linux-arm-kernel@lists.infradead.org>,
<linux-mediatek@lists.infradead.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [RFC RESEND PATCH 2/7] dt-bindings: soc: Add opp table on scpsys bindings
Date: Mon, 7 Jan 2019 19:04:14 +0800 [thread overview]
Message-ID: <1546859054.6818.126.camel@mtksdaap41> (raw)
In-Reply-To: <CAL_JsqJXFAEdSaexA3p62u8f3RsVA1vfNsOLu4aetB-iLb9qFg@mail.gmail.com>
On Thu, 2019-01-03 at 12:45 -0600, Rob Herring wrote:
> On Wed, Jan 2, 2019 at 8:10 AM Henry Chen <henryc.chen@mediatek.com> wrote:
> >
> > Add opp table on scpsys dt-bindings for Mediatek SoC.
> >
> > Signed-off-by: Henry Chen <henryc.chen@mediatek.com>
> > ---
> > Documentation/devicetree/bindings/opp/mtk-opp.txt | 24 +++++++++++++
> > .../devicetree/bindings/soc/mediatek/scpsys.txt | 42 ++++++++++++++++++++++
> > 2 files changed, 66 insertions(+)
> > create mode 100644 Documentation/devicetree/bindings/opp/mtk-opp.txt
> >
> > diff --git a/Documentation/devicetree/bindings/opp/mtk-opp.txt b/Documentation/devicetree/bindings/opp/mtk-opp.txt
> > new file mode 100644
> > index 0000000..036be1c
> > --- /dev/null
> > +++ b/Documentation/devicetree/bindings/opp/mtk-opp.txt
> > @@ -0,0 +1,24 @@
> > +Mediatek OPP bindings to descibe OPP nodes with level values
> > +
> > +OPP tables for devices on Mediatek platforms require an additional
> > +platform specific level value to be specified.
> > +This value is passed on to the mediatek Power Management Unit by the
> > +CPU, which then takes the necessary actions to set a voltage rail
> > +to an appropriate voltage based on the value passed.
> > +
> > +The bindings are based on top of the operating-points-v2 bindings
> > +described in Documentation/devicetree/bindings/opp/opp.txt
> > +Additional properties are described below.
> > +
> > +* OPP Table Node
> > +
> > +Required properties:
> > +- compatible: Allow OPPs to express their compatibility. It should be:
> > + "operating-points-v2-mtk-level"
> > +
> > +* OPP Node
> > +
> > +Required properties:
> > +- mtk,level: On Mediatek platforms an OPP node can describe a positive value
> > +representing a level that's communicated with a our power management hardware
> > +which then translates it into a certain voltage on a voltage rail.
>
> Work with the Qcom folks and create a common level property.
>
> Rob
Ok, I see the reply from Rajendra on
https://lore.kernel.org/patchwork/patch/1027082/
I will follow the new common property, thanks.
next prev parent reply other threads:[~2019-01-07 11:04 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-02 14:09 [RFC RESEND PATCH 0/7] Add driver for dvfsrc and add support for active state of scpsys on mt8183 Henry Chen
2019-01-02 14:09 ` [RFC RESEND PATCH 1/7] dt-bindings: soc: Add DVFSRC driver bindings Henry Chen
2019-01-11 16:09 ` Rob Herring
2019-02-18 4:55 ` Henry Chen
2019-03-20 8:52 ` Nicolas Boichat
2019-01-02 14:09 ` [RFC RESEND PATCH 2/7] dt-bindings: soc: Add opp table on scpsys bindings Henry Chen
2019-01-03 18:45 ` Rob Herring
2019-01-07 11:04 ` Henry Chen [this message]
2019-01-02 14:09 ` [RFC RESEND PATCH 3/7] soc: mediatek: add support for the performance state Henry Chen
2019-01-03 22:57 ` Stephen Boyd
2019-01-07 11:06 ` Henry Chen
2019-01-02 14:09 ` [RFC RESEND PATCH 4/7] arm64: dts: mt8183: add performance state support of scpsys Henry Chen
2019-01-03 4:47 ` Viresh Kumar
2019-01-03 14:16 ` Henry Chen
2019-01-02 14:09 ` [RFC RESEND PATCH 5/7] soc: mediatek: add header for mediatek SIP interface Henry Chen
2019-01-02 14:09 ` [RFC RESEND PATCH 6/7] soc: mediatek: add MT8183 dvfsrc support Henry Chen
2019-01-03 23:08 ` Stephen Boyd
2019-01-07 11:09 ` Henry Chen
2019-01-02 14:09 ` [RFC RESEND PATCH 7/7] arm64: dts: mt8183: add dvfsrc related nodes Henry Chen
2019-01-03 4:48 ` [RFC RESEND PATCH 0/7] Add driver for dvfsrc and add support for active state of scpsys on mt8183 Viresh Kumar
2019-01-03 14:31 ` Henry Chen
2019-01-03 22:53 ` Stephen Boyd
2019-01-07 11:04 ` Henry Chen
2019-01-07 16:34 ` Georgi Djakov
2019-01-09 3:08 ` Henry Chen
2019-01-10 9:39 ` Georgi Djakov
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